I am referring to this sentence: „Machst du jeden Morgen ein Omelett mit Käse?“
My grammar is pretty poor, but I think „jeden“ is an adjective and „jeden Morgen“ is an adverb modifying the verb „machst“. Importantly - I hope I‘m right - „Morgen“ is not a direct object. If all this is correct, then what is the grammatical rule that places „jeden Morgen“ in the accusative? Thanks in advance.